Accession Number:

AD0269293

Title:

SPEECH ANALYSIS TECHNIQUES

Descriptive Note:

Corporate Author:

ROYAL INST OF TECH STOCKHOLM (SWEDEN)

Personal Author(s):

Report Date:

1961-09-30

Pagination or Media Count:

1.0

Abstract:

The work on the 51-channel analyzer was continued. The mechanical assembly of the filterbank was started. Comparative studies of various means of speech spectrum analysis were concerned with formant frequency measurements from SonaGraph spectrograms and sections. Evaluations of various means of voice pitch extraction were followed up by a complete construction of a dual channel pitch extractor and decision circuit. Development was continued on various methods for automatic recognition of specific phonetic features and sound categories. It was demonstrated that the probability of correct identification of a consonant next to a vowel as a function of the time location of the cut in time generally has a maximum in its rate of rise at the physical boundaries. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE